AEDIKO 20pcs TP4056 Micro USB 5V 1A 18650 Lithium Battery Charger Module Li ion Charging Board with Dual Protection Function

Input Interface: Micro USB Input Voltage: 4.5V-5.5V (Recommended Voltage 5V Protection:Overcharge Over Discharge and Over-current Protection Light State:NO Load the Light NOT Bright, Red Light for Recharging,Green Light is FULL Charge Application:This Module is Used for Single-Cell Lithium Battery or Multi-Cell Parallel Lithium Battery Charging, the Ammeter for Testing Current Can Only be Connected in Series to the 5V Input of the Charging Board